Dish-cleansing apparatus.



No.660,3l4. Patented Oct. 23, I900. J

A. ROSEDALE.

DISH CLEANSING APPARATUS.

' (Application filed Dec. 18, 1899.)

(N0 Model.)

4 Sheet$Sheel I.

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V m: "cams PETERS no, PHOYO-LITHOY. WASNINGTON, 04 0V Nb. 660,314. Patented Oct. 23, I900.

.' A. BOSEDALE.

DISH CLEANSING APPARATUS. (Apphcahon filed Dec 18 1899 4 Sheets-Sheet 2.

(No Model.)

7 Ira/may; cial b/o INK Nonms Finis ca, PHOTO-LITHD., wnsnmn V UNIT D STATES PATENT OFFICE.

ADOLPH ROSEDALE, OF TALLAHASSEE, FLORIDA, ASSIGNOR TO THE ROSE- DALE AUTOMATIC DISH-WASHING MACHINE COMPANY, OF ILLINOIS.

DISH-CLEANSING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 660,314, dated October 23, 1900.

Application fil d December 18, 1899. Serial No. 740,788. (No model.)

To all whom it may concern: steam and hot-water supply; B, a cabinet Be it known that I, ADOLPH ROSEDALE, asupplied with a vertical hotwater stand citizen of the United States, residing at Talpipe B, a similar steam stand-pipe B and lahassee, in the county of Leon and State of horizontally-disposed perforated shelf-form- 5 Florida, have invented a new and useful Iming spraying-pipes B connecting said standprovement in Dish-Cleansing Apparatus, of pipes in several horizontal planes, thereby which the following is a specification. dividing the cabinetinto superimposed tray- My invention relates particularly to an imreceiving cleansing-compartments a, a, &c. provement in machines for cleansing dishes, 0 0, supports for said tubular shelves, com- 10 though the device may be used for cleansing prising upright rods and perforated crossmany other articles. bars I), receiving said rods and rigid there- My object is to provide for the purpose with; D, a steam-supply pipe leading from stated a machine of large capacity, of cleanly the steam-dome of the boiler to the upper end and easy operation, and free from all objecof the stand-pipe B and provided in its 15 tionable moving parts and mechanisms. course with a valve D; E, a watersupply In perfecting this invention important feapipe leadingfrom the boiler below its waterturesof consideration have been those of line and connecting with the upper end of cheapness of production and operation, the stand-pipe B, being supplied in its course avoidance of danger of chipping or breaking with a valve E; F, a vapor exhaust or educ- 2o dishes, and the presence of perfect hygienic tion pipe leading from the top of the cabinet ,7 1W

conditions. and supplied with a valve F; G, a Waste- In the preferred construction shown in the Water eduction-pipe leading from the bottom accompanying drawings a cabinet is proof the cabinet and provided with a valve G; vided containing a stationary steam stand- H, a pressure-gage communicating with the 25 pipe and a stationary hot-water stand-pipe, interior of the cabinet, and I a door for the said stand-pipes being connected in several cabinet, which in the construction shown is planes by relatively small sinuous perforated mounted on hinges I and secured by fastenspraying pipes, which thus as open work ings I shelves divide the cabinet into a number As appears from Figs. 5 and 6, each shelf- 30 of superimposed compartments for receiving forming steam and water pipe B comprises,

' dish-trays. Preferably the water stand-pipe preferably, parallel transversely extending connects with a boiler below the water-level, sections cl, joined in alternation at their ends and the steam stand-pipe connects with the by short sections d and elbow-couplings cl steam-dome of said boiler. Under the most to afford a continuous sinuous channel ex- 5 usual and satisfactory conditions no moving tending from one stand-pipe to the other. I

' parts other than the valves and cabinet-door have shown each transverse pipe and each are required. short section provided with four rows of per- In the drawings, Figure 1 is a broken View, forations; but obviously the number and poin front elevation, of thecabinet, the boiler, sition of the perforations may be changed at 0 and the connections and fittings; Fig. 2, a will. 7 0 broken plan view thereof; Fig. 3, a vertical The transverse pipes are of less diameter section parallel to the front of the cabinet, than the stand-pipes, and those belonging to as indicated at line 3 of Figs. 2, 4, and 5; a given shelf-forming series are spaced at a Fig. 4, a vertical section at line 4 of Fig. 3 few inches apart, the perforations being mi- 45 Fig. 5, a plan section at line 50f Fig." 3; nute and at close intervals. The lower por- 5 Fig. 6, an enlarged broken perspective view tions of the stand-pipes are connected by the of a portion of the perforated pipe-shelving, lowermost shelving-tube B and thus termiand Figs. 7 and 8, details of one form of doornate in blind ends, except for the perforations fastening means which may be employed. in the shelf-tubing.

50 A represents a boiler or other source of Figs. 7 and 8 show, respectively, a portion cured at their inner ends by pins f to lugs f on the plate 6.

The bolts f are supplied with loose cam-collars f having handles In Fig. 8 one of the bolts is shown engaging a slotted lug, while the dotted and full positions of the cam indicate, respectively, the position before and after tightening. The

hinges I are of a construction and location to cause the rear edge of the door to clear the fastenings thereat in swinging. In practice the door may be of any suitable construction to secure quickness of operation and reasonable tightness of joint.

In operation the cabinet may be preparatorily heated by closing all eduction-valves and opening only the steam-admission valve for a short time. The dishes may be introduced into the cabinet conveniently by means of open-Work trays, which permit impingement of the jets from all directions. Fig. 5 shows, by means of dotted lines, a convenient form and location for these trays. It will be observed that the size of the door-opening is materially reduced by locating the door centrally and shoving the first trays of a given tier inserted to the sides of the cabinet, the central tray being last inserted. In removing the trays the center tray is removed first. After the trays are in place and the door secured the eduction-valves are opened wide and the steam admission valve is opened slightly, and afterward the water-admission valve is opened. Both ad mission-valves are then opened to the extent desired, and after a very short interval the dishes are ready for removal. Before the door is opened the admission'valves are closed to prevent any water from being thrown out of the cabinet. The ed notion-ports are large enough to allow the Vapor and waste water to pass without hindrance from the cabinet, and the interior of the cabinet is left perfectly clean. After the first washing the cabinet is quite Warm and tends to dry the dishes rapidly when the water and the steam supply are shut off. The heat of the dishes finishes the drying operation after. removal, and it is found that the dishes are thoroughly cleansed and highly polished.

It is noteworthy that no soap or other similar disagreeable or unhygienic agent is required even for dishes which are very greasy and otherwise soiled. No partially-decayed food particles remain, and the dishes come from the cabinet after subjection to a germicidal heat. Since no pressure is maintained in the cabinet during the Washing operation,

the walls thereof may, if desired, be of light sheet metal inc'losed in a non-conducting caslng.

I attribute the splendid cleansing and polishing efiect attained with the device largely to the fact that the hot water and steam are conducted to the cabinet through separate channels and there intimately mingled,whereby both a higher degree of heat results in the cabinet and also the hot-water jets are caused to issue with greater velocity owing to the conversion of heat energy into mechanical energy through the condensation of the steam. Nevertheless the invention is not limited to the use of both steam and hot water,as the construction has many advantages even though certain features are omitted. The disposition and construction of the spraying pipes or heads are such that the spray is directed against the dishes from all sides, the efiect being to prevent movement of the dishes even though streams of great force are used. By employing a stand-pipe and the several spraying-pipes connected therewith and lying in several planes the capacity of the apparatus is increased greatly. Thus it is perfectly practicable to construct a cabinet having a capacity of from eight hundred to one thousand pieces within easy range of an attendant and provided with a single door. The sinuous form of each spraying-pipe may be departed from; but it is important that in each of the dividing-planes, or planes separating the compartments, a spraying-head shall be provided having such number and disposition of perforations as to cause practicallya sheet of Water-jets to be ejected upon in different planes and forming a tray-receiving compartment, said heads being provided on adjacent sides with a large number of perforations disposed close to each other throughout the planes of said heads, and serving to simultaneously project sheets of water-jets, substantially as and for the purpose set forth.

3. In apparatus of the character described, the combination with a hot water-supply source, and a supply-pipe leading from said source, of a plurality of spraying-heads lying in diflt'erent horizontal planes and forming a series of spraying-compartments, each of said spraying-heads comprising a plurality of pipesections connected with each other, said pipesections being disposed in close relation to each other and provided with perforations,

substantially as and for the purpose set forth.

4. In apparatus of the character described, the combination with a hot watersupply source, a supply-pipe leading therefrom, a cabinet, a stand-pipe therein connected with said supply-pipe, and a plurality of sprayingheads connected with said stand-pipe and forming tray-receiving compartments, each of said spraying-heads comprising a series of perforated pipe-sections connected together, substantially as and for the purpose set forth.

5. The combination with a hot-water-supply source and a steam-supply source, of a plurality of spraying-heads located in different planes to afford a tray-receiving compartment, a steam-pipe connecting the source of steam-supply with said spraying-heads, and a hot-Water pipe connecting the source of hotwater supply with said spraying-heads, substantially as and for the purpose set forth.

6. The combination with a steam-supply source and a hot-water-supply source, of a cabinet, a steam stand-pipe in said cabinet, a hot-water stand-pipe in said cabinet, and a plurality of spraying-heads connected with both said stand-pipes and dividing the cabinet into tray-receiving compartments, substantially as and for the purpose set forth.

7. The combination with a steam-supply source and a hot-water-supply source, of a cabinet, a steam stand-pipe in said cabinet and a hot-water stand-pipe in said cabinet, and a plurality of spraying-heads connected with both said stand-pipes and dividing the cabinet into tray-receiving compartments, each spraying-head comprising perforated, pipe-sections connected together, substantially as and for the purpose set forth.

8. The combination with a steam-supply source and a hot-Water-supply source, of a cabinet, a steam stand-pipe in said cabinet, and a hot-Water stand-pipe in said cabinet, a plurality of spraying-heads connected with both said stand-pipes and dividing the cabinet into tray-receiving compartments, each spraying-head comprising a sinuous perforated pipe of less diameter than the standpipes, substantially as and for the purpose set forth.

9. The combination of a boiler, a steamsupply pipe connected with the steam-dome .of said boiler, a hot water-suixply pipe connected with said boiler below the Water-level thereof, and a plurality of spraying-heads located in different planes and connected with said supply-pipes,substantially as and for the purpose set forth.

10. The combination with a boiler, of a hot- Water-supply pipe connected therewith below the water-level thereof, a cabinet, and a'plurality of spraying-heads Within said cabinet, said spraying-heads being supplied with water under steam-pressure from the boiler, substantially as and for the purpose set forth.

11. The combination of a steam supply source, a hot-water-supply source, a cabinet, steam and hot-Water spraying-heads in said cabinet in communication with said steam and hot-watersupply sources, valves controlling the fiow of steam and Water into said heads, an eduction-port for said cabinet, and a valve controlling the eduction-port.

12. The combination of a steam supply source, a hot-water-suppl'y source, a cabinet, steam and hot-water spraying-heads in said cabinet in communication with said steam and hotwater supply sources, valves controlling the floW of steam and Water into said heads, and a valved Water-eduction portand a valved vapor-eduction pipe for the cabinet.

13. The combination of a cabinet, standpipes B B therein, spraying-heads B comprising perforated sinuous pipes connecting saidstand-pipes, and supports for said perforated pipes at the loop ends thereof, substantially as and for the purpose set forth.

ADOLPH ROSEDALE. 

